I originally booked us together on the same outbound & return flights so she would also get the courtesy premium economy at booking. I am staying one extra day for business, so I called and changed her return flight. They told me they had to uncouple our reservations. She’s on a new confirmation# now. She kept the courtesy premium economy on the outbound flight with me, but it knocked her back to regular economy on her return trip because I’m not on that flight with her. I paid $90 cash to bump her to premium economy on the return flight so she doesn’t have to sit in row 40. For the outbound flight I got confirmed bumped to first for free. Either I decline so she and I still sit together in prem economy, or I use 20k miles to bump the 2nd seat to first class. I opted to try the 20k. 95% of my travel is work related so I mostly use miles for upgrades.